Home / 11,065.61-15,289.97-8,845.81

Finding the Fourth Proportional to 11,065.61, 15,289.97 and 8,845.81

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Solution

The fourth proportional to 11,065.61, 15,289.97 and 8,845.81 is: 12,222.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,065.61 : 15,289.97 = 8,845.81 : x
  2. Step 2: Convert to fraction form
    11,065.61/15,289.97 = 8,845.81/x
  3. Step 3: Cross multiply
    11,065.61x = 15,289.97 × 8,845.81
  4. Step 4: Simplify right side
    11,065.61x = 135,252,087.07
  5. Step 5: Solve for x
    x = 135,252,087.07/11,065.61
  6. Step 6: Final answer
    x = 12,222.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.